Extension arm with light for a road construction machine



FIG. 1 is a front side of a fourth embodiment of the design for an extension arm for a road construction machine in the present invention.

FIG. 2 is a left side view of the design for an extension arm for a road construction machine of FIG. 1.

FIG. 3 is a rear side view of the design for an extension arm for a road construction machine of FIG. 1.

FIG. 4 is a right side view of the design for an extension arm for a road construction machine of FIG. 1.

FIG. 5 is a top side view of the design for an extension arm for a road construction machine of FIG. 1.

FIG. 6 is a bottom side view of the design for an extension arm for a road construction machine of FIG. 1.

FIG. 7 is a perspective view of the design for an extension arm for a road construction machine of FIG. 1; and,

FIG. 8 is a further perspective view onto the rear side of the design for an extension arm for a road construction machine of FIG. 1. 

CLAIM The ornamental design for a extension arm with light for a road construction machine, as shown and described. 